The above map shows net domestic migration — the number of Americans who moved into a county from somewhere else in the US minus the number of people who moved out of that county to another US jurisdiction — adjusted by each county's 2017 population.

Counties in blue had more people moving in than moving out, and counties in red experienced negative net migration.

Although many Southern counties had big increases in population from people moving in, the region also dominates the list of the 10 counties with the largest decreases from domestic migration among counties with at least 10,000 residents:

According to that report, Florida had the most people moving in among the states, with about 566,000 people moving to the state in 2017. The bureau said that the Empire State was the biggest source of new Floridians, with about 64,000 New Yorkers moving to the Sunshine State in that year.